Associations to the word «Archaean»

Wiktionary

ARCHAEAN, adjective. (geology) of, or relating to the geologic eon from about 3,800 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere with little oxygen, the formation of the first continents and oceans and the emergence of simple life
ARCHAEAN, proper noun. (geology) The eon from 2,500 Ma to 4,000 Ma.
ARCHAEAN, noun. (biology) Any organism of the domain Archaea

Dictionary definition

ARCHAEAN, adjective. Of or relating to the earliest known rocks formed during the Precambrian Eon.

Wise words

The chief virtue that language can have is clearness, and nothing detracts from it so much as the use of unfamiliar words.
Hippocrates